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<td style="vertical-align: top;; padding: 0; border-collapse: collapse; padding-right: 5px; font-size: 20px; line-height: 30px; mso-line-height-rule: exactly" class="page-title-pattern-header-container"> <span class="page-title-pattern-header" style="font-family: Arial, sans-serif; padding: 0; font-size: 20px; line-height: 30px; mso-text-raise: 2px; mso-line-height-rule: exactly; vertical-align: middle"> <a href="https://shibboleth.atlassian.net/browse/OSJ-342?atlOrigin=eyJpIjoiMDY4NTA0ZDIxMDU1NDE5MGFkNThkNzk4OGE1Mjc0ZTEiLCJwIjoiaiJ9" style="color: #3b73af; text-decoration: none">Re: Investigate Strategies to end of life our use of Hibernate in V5</a> </span> </td>
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<td class="text-paragraph-pattern-container mobile-resize-text " style="padding: 0; border-collapse: collapse; padding: 0 0 10px"> <p style="margin: 10px 0 0; margin-top: 0">As another snippet pushing for getting off Hibernate, I will note that in porting to the Jakarta EE 9 stack ( <span class="jira-issue-macro" data-jira-key="JPAR-186"> <a href="https://shibboleth.atlassian.net/browse/JPAR-186" class="jira-issue-macro-key issue-link" title="Explore Java 17 + Spring Framework 6 + Jakarta EE 9 platform" style="color: #3b73af; text-decoration: none"> <img class="icon" src="https://shibboleth.atlassian.net/rest/api/2/universal_avatar/view/type/issuetype/avatar/10318?size=medium"> JPAR-186 </a> <span class="aui-lozenge aui-lozenge-subtle aui-lozenge-current jira-macro-single-issue-export-pdf" style="background: #cccccc; border: 1px solid #cccccc; border-radius: 3px; color: #333333; display: inline-block; font-size: 11px; font-weight: bold; line-height: 99%; margin: 0; padding: 2px 5px; text-align: center; text-decoration: none; text-transform: uppercase; background-color: #ffffff; border-color: #cccccc; color: #333333" bgcolor="#ffffff">In Progress</span> </span> ) I came across a place in our JPAStorageService which appears to be incompatible with Hibernate 6.0.0.Beta3, which is the current iteration for that context. It may of course get fixed, but for now our tests fail because the JPAStorageServiceTest’s tearDown method calls</p>
<div class="preformatted panel" style="border-width: 1px;; border: 1px solid #cccccc; background: #f5f5f5; font-size: 12px; line-height: 1.333; font-family: monospace; border: 1px solid #cccccc; -moz-border-radius: 3px; border-radius: 3px; margin: 9px 0">
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<pre style="margin: 10px 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal; white-space: pre; word-break: normal; word-wrap: break-word; word-break: break-all; white-space: pre-wrap">List<String> contexts1 = storageService.readContexts();</pre>
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</div> <p style="margin: 10px 0 0">The code path includes this:</p>
<div class="preformatted panel" style="border-width: 1px;; border: 1px solid #cccccc; background: #f5f5f5; font-size: 12px; line-height: 1.333; font-family: monospace; border: 1px solid #cccccc; -moz-border-radius: 3px; border-radius: 3px; margin: 9px 0">
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<pre style="margin: 10px 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal; white-space: pre; word-break: normal; word-wrap: break-word; word-break: break-all; white-space: pre-wrap"> // this query uses the distinct keyword, it must use optimistic locking
return executeNamedQuery(manager, "JPAStorageRecord.findAllContexts", null, String.class,
LockModeType.OPTIMISTIC);</pre>
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</div> <p style="margin: 10px 0 0">The query in question does indeed include DISTINCT:</p>
<div class="preformatted panel" style="border-width: 1px;; border: 1px solid #cccccc; background: #f5f5f5; font-size: 12px; line-height: 1.333; font-family: monospace; border: 1px solid #cccccc; -moz-border-radius: 3px; border-radius: 3px; margin: 9px 0">
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<pre style="margin: 10px 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal; white-space: pre; word-break: normal; word-wrap: break-word; word-break: break-all; white-space: pre-wrap"> @NamedQuery(name = "JPAStorageRecord.findAllContexts",
query = "SELECT distinct r.context FROM JPAStorageRecord r"),</pre>
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</div> <p style="margin: 10px 0 0">This fails with:</p>
<div class="preformatted panel" style="border-width: 1px;; border: 1px solid #cccccc; background: #f5f5f5; font-size: 12px; line-height: 1.333; font-family: monospace; border: 1px solid #cccccc; -moz-border-radius: 3px; border-radius: 3px; margin: 9px 0">
<div class="preformattedContent panelContent" style="padding: 9px 12px">
<pre style="margin: 10px 0 0; margin-top: 0; max-height: 30em; overflow: auto; white-space: pre-wrap; word-wrap: normal; white-space: pre; word-break: normal; word-wrap: break-word; word-break: break-all; white-space: pre-wrap">java.lang.RuntimeException:
java.io.IOException:
java.lang.IllegalStateException:
org.hibernate.query.IllegalQueryOperationException:
Locking with DISTINCT is not supported!</pre>
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</div> <p style="margin: 10px 0 0">I will catch this explicitly in the dev/JPAR-186 branch (essentially removing tearDown for now) to make progress, on the basis that if we’re removing Hibernate this won’t be an ongoing issue. We need to revisit before V5 either way.</p> </td>
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